# RefBigDecimal.isGreaterThan

Check if the current state of a RefBigDecimal is greater than a BigDecimal.

## Signatures

```ts
export declare const isGreaterThan: {
    (that: BigDecimal.BigDecimal): <E, R>(ref: RefBigDecimal<E, R>) => RefSubject.Computed<boolean, E, R>;
    <E, R>(ref: RefBigDecimal<E, R>, that: BigDecimal.BigDecimal): RefSubject.Computed<boolean, E, R>;
};
```

## Why

Check if the current state of a RefBigDecimal is greater than a BigDecimal. The operation
remains attached to the RefSubject's versioned state boundary.

## Ownership and lifetime

The is greater than view retains no independent state. An Effect read samples the source once;
Fx observation follows later pushes and its observing Scope owns subscription cleanup.